Optimizing DAX: Improving DAX performance in Microsoft Power BI and Analysis Services

Author: Marco Russo (Author), Alberto Ferrari (Author)

Publisher finelybook 出版社:‏ SQLBI Corp.

Publication Date 出版日期: 2024-04-30

Edition 版本:‏ 2nd ed.

Language 语言: English

Print Length 页数: 816 pages

ISBN-10: 173536522X

ISBN-13: 9781735365220

Book Description

This book is the state of the art of optimizing DAX expressions in Power BI and Analysis Services semantic models. Learn how to locate performance bottlenecks, read the query plan and performance metrics, rewrite the slower part of an expression, and measure the performance improvements.

• Use tools like Power BI Desktop Performance Analyzer and DAX Studio
• Understand the DAX formula engine
• Learn characteristics of different storage engines (VertiPaq, DirectQuery over SQL)
• Read DAX query plans
• Optimize common DAX constructs
• Solve security performance issues
• Improve DirectQuery response time
• Control the data placement in composite models to avoid bottlenecks

Prerequisites: proficiency in DAX and SQL (for DirectQuery), understanding of the Tabular engine used by semantic models, and familiarity with DAX Studio.

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